海南地慢柱的资源环境效应

——以地热异常与玄武岩碳封存为例

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中图分类号：P314.2；TK529 文献标志码：A 文章编号：2095-1329（2025）03-0043-10

Abstract：The Hainan mantle plume hasbenincreasinglysubstantiated bygeophysicaland geochemicaldata.Inadditiontodriving large-scalmagmaticactivitytheHainanmantleplumehassignificantimplicationsforresourceandenvironmentalefectsclosely relatedtocarbonneutrality.Theseefectsareprimarilymanifestedintheformof geothermalcleanenergycontributingtocarbon reduction，aswellasnaturalandengineeredcarbonsquestrationthroughbsaltcarbonationTispaper’sesearchsosthat： （1）TheextensivemagmaticactivitytrigeredbytheHainanmantleplumehasmaitainedarelativelyhighgeothealbackgroundinthe Leiqiongvolcanicregion.Thecombnatioofbasaltandsuitablegeologicaltructureshasledtotheformationofpronouncdgeothemal anomalies intheFushansag within thebasaltdistributionarea andbeneath thesedimentaryrocksmakingitafavorabletarget fordry hot rock exploration.Successful drilling of two dryhot rock wels has been achieved at approximately 5000m depth（Huadong1Rwell reaching a temperature of 185‰ at 4387m depth; Fushen-1 well reaching a temperature of 188.71°C at 5200m depth）. （2） The activity oftheHaianmantleplumehasresultedinthefomationofextesivebasalticfrmationsintenorteHaianrgion，withource characteristicssimilartoteColumbiabasaltofteWallaprojectintheUnitedStates.Tebasaltisicincalcum，magnesimn iron，andhasrelativelywel-evelopedporosity.Preliminaryestimatessuggestthatthetheoreticalcapacityfor CO2 mineral sequestration in the northern Hainan region ranges from 2.0 to 48.5Gt ，indicating significant potential for CO2 mineral storage.（3） Favorable basaltic geologicalconditions notonlymake itpossblefortheLeiqiongregiontotaketheleadinestablishingthefirst in-situbasalt CO2 mineralsequestrationprojectinChina，butalsooldpromiseforthedevelopmentofalow-carbonindustrialchaincenteredoncarbo sequestration， while simultaneously producing high value-added products such as soluble potash and hydrogen.

Keywords：Hainanmantleplume;resourceandenvironmental effcts;basalt; geothermalanomaly;carbonsequestration

地幔柱的概念最初于1971年提出[1]，经过50多年的发展，地幔柱依然是当代地学研究的前缘和热点。（剩余15657字）